Changes to Retrieves a list of categories

added the required property category_list/categories/items/topic_title_placeholder to the response with the 200 status

added the required property category_list/categories/items/emoji to the response with the 200 status

added the required property category_list/categories/items/icon to the response with the 200 status

added the required property category_list/categories/items/style_type to the response with the 200 status

added the required property category_list/categories/items/subcategory_count to the response with the 200 status

added the required property category_list/categories/items/uploaded_background_dark to the response with the 200 status

added the required property category_list/categories/items/uploaded_logo_dark to the response with the 200 status

the response's body type changed from object to no type for status 200

removed the optional property category_list/draft from the response with the 200 status

removed the optional property category_list/draft_key from the response with the 200 status

removed the optional property category_list/draft_sequence from the response with the 200 status

api operation id listCategories was added

added the new optional query request parameter include_subcategories

the response property category_list became required for the status 200

the response property category_list/can_create_category became required for the status 200

the response property category_list/can_create_topic became required for the status 200

the response property category_list/categories became required for the status 200